While it's fun to covet Cardi B's $295 makeup routine or the $401 worth of beauty products Nicki Minaj wore on her recent album cover, you probably have rent to pay and Uber rides to cancel. If you can't drop triple the price of your air-conditioning bill on makeup, you might rely on your trusty drugstore beauty aisle. That said, the stacked shelves of your drugstore can be an intimidating plac...